Efficient pulse sequence for multisection dual-repetition time MR image acquisition

F. Farzaneh, Stephen J Riederer, W. T. Djang, J. T. Curnes, R. J. Herfkens

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A magnetic resonance imaging pulse sequence was developed in which multisection spin-echo image data are simultaneously acquired for two repetition time (TR) intervals (TR1 and TR2) in one imaging sequence. In a conventional multisection image at a single TR, the number of sections is limited to TR/TS, where TS is the readout time. With this new sequence, the number of sections that can be imaged at both TRs in one acquisition is equal to (TR1 + TR2)/(TS1 + TS2), where TS1 and TS2 may be different for the two TRs. Imaging time is equal to that for a single image at a TR of TR1 + TR2. Clinical images were obtained with the new sequence from 15 patients and compared with images acquired at the same TR/TE by means of standard multisection single-TR methods. Relative image quality was assessed by three radiologists in 37 comparisons. In general, the dual-TR results at the long TR were judged equivalent to those from a single-TR image. Dual-TR results at the short TR had a modest reduction in contrast, but in none of 15 cases were any pathologic features missed.

Original languageEnglish (US)
Pages (from-to)541-546
Number of pages6
JournalRadiology
Volume167
Issue number2
StatePublished - 1988
Externally publishedYes

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Magnetic Resonance Imaging
Radiologists

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

Farzaneh, F., Riederer, S. J., Djang, W. T., Curnes, J. T., & Herfkens, R. J. (1988). Efficient pulse sequence for multisection dual-repetition time MR image acquisition. Radiology, 167(2), 541-546.

Efficient pulse sequence for multisection dual-repetition time MR image acquisition. / Farzaneh, F.; Riederer, Stephen J; Djang, W. T.; Curnes, J. T.; Herfkens, R. J.

In: Radiology, Vol. 167, No. 2, 1988, p. 541-546.

Research output: Contribution to journalArticle

Farzaneh, F, Riederer, SJ, Djang, WT, Curnes, JT & Herfkens, RJ 1988, 'Efficient pulse sequence for multisection dual-repetition time MR image acquisition', Radiology, vol. 167, no. 2, pp. 541-546.
Farzaneh F, Riederer SJ, Djang WT, Curnes JT, Herfkens RJ. Efficient pulse sequence for multisection dual-repetition time MR image acquisition. Radiology. 1988;167(2):541-546.
Farzaneh, F. ; Riederer, Stephen J ; Djang, W. T. ; Curnes, J. T. ; Herfkens, R. J. / Efficient pulse sequence for multisection dual-repetition time MR image acquisition. In: Radiology. 1988 ; Vol. 167, No. 2. pp. 541-546.
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